Struct DecimalFormat 

pub struct DecimalFormat { /* private fields */ }

This struct allows you to print a specific number of digits before the decimal point, and after the decimal point.

This exists because the base format trait allows you to specify a width and a precision. However, in a fractional number, the width applies to the WHOLE number, including the fractional component, and doesn’t zero-pad effectively.

• The first parameter is the number of zero-padded digits before the decimal point.
• The second parameter is the number of zero-padded digits after the decimal point.

Example:

use irox_tools::fmt::DecimalFormat;
let fmt = DecimalFormat::new(2,4);

assert_eq!("00.1235", fmt.format_f64(0.1234567));

Implementations

impl DecimalFormat

pub fn new(width: usize, precision: usize) -> Self

pub fn format_f64(&self, val: f64) -> String

Formats the specified f64 using this formatter.

Example:

use irox_tools::fmt::DecimalFormat;
let fmt = DecimalFormat::new(2,4);

assert_eq!("00.1235", fmt.format_f64(0.1234567));

pub fn format_f32(&self, val: f32) -> String

Formats the specified f32 using this formatter.

Example:

use irox_tools::fmt::DecimalFormat;
let fmt = DecimalFormat::new(2,4);

assert_eq!("00.1235", fmt.format_f32(0.1234567));